- add `Rect::is_empty()` that checks whether either height or width == 0
- refactored `Rect` into layout/rect.rs from layout.rs. No public API change as
the module is private and the type is re-exported under the `layout` module.
Adds a new `Block::border_set` method that allows the user to specify
the symbols used for the border.
Added two new border types: `BorderType::QuadrantOutside` and
`BorderType::QuadrantInside`. These are used to draw borders using the
unicode quadrant characters (which look like half block "pixels").
QuadrantOutside:
```
▛▀▀▜
▌ ▐
▙▄▄▟
```
QuadrantInside:
```
▗▄▄▖
▐ ▌
▝▀▀▘
```
Fixes: https://github.com/ratatui-org/ratatui/issues/528
BREAKING CHANGES:
- BorderType::to_line_set is renamed to to_border_set
- BorderType::line_symbols is renamed to border_symbols
* feat(line): add `Line::raw` constructor
There is already `Span::raw` and `Text::raw` methods
and this commit simply adds `Line::raw` method for symmetry.
Multi-line content is converted to multiple spans with the new line removed
An earlier change introduced a bug where the width of value labels with
unicode characters was incorrectly using the string length in bytes
instead of the unicode character count. This reverts the earlier change.
Signed-off-by: Ben Fekih, Hichem <hichem.f@live.de>
The `Spans` type (plural, not singular) was replaced with a more ergonomic `Line` type
in Ratatui v0.21.0 and marked deprecated byt left for backwards compatibility. This is now
removed.
- `Line` replaces `Spans`
- `Buffer::set_line` replaces `Buffer::set_spans`
Windows cannot compile termion, so it is not included in the docs.
Rustdoc will fail if it cannot find a link, so the docs fail to build
on windows.
This replaces the link to TermionBackend with one that does not fail
during checks.
Fixes https://github.com/ratatui-org/ratatui/issues/498
The layout cache now uses a LruCache with default size set to 16 entries.
Previously the cache was backed by a HashMap, and was able to grow
without bounds as a new entry was added for every new combination of
layout parameters.
- Added a new method (`layout::init_cache(usize)`) that allows the cache
size to be changed if necessary. This will only have an effect if it is called
prior to any calls to `layout::split()` as the cache is wrapped in a `OnceLock`
This allows writing unit tests without having to call set_style on the
expected buffer.
E.g.:
```rust
use crate::style::Stylize;
let mut buf = Buffer::empty(Rect::new(0, 0, 10, 10));
buf.set_string(0, 0, "foo", Style::new().red());
buf.set_string(0, 1, "bar", Style::new().blue());
assert_eq!(buf, Buffer::with_lines(vec!["foo".red(), "bar".blue()]));
```
Inspired by https://github.com/ratatui-org/ratatui/issues/493#issuecomment-1714844468
This commit adds `prelude::*` all doc examples and widget::* to those
that need it. This is done to highlight the use of the prelude and
simplify the examples.
- Examples in Type and module level comments show all imports and use
`prelude::*` and `widget::*` where possible.
- Function level comments hide imports unless there are imports other
than `prelude::*` and `widget::*`.
The Stylize trait was introduced in 0.22 to make styling less verbose.
This adds a bunch of documentation comments to the style module and
types to make this easier to discover.
Although the `Stylize` trait is already implemented for `&str` which
extends to `String`, it is not implemented for `String` itself. This
commit adds an impl of Stylize that returns a Span<'static> for `String`
so that code can call Stylize methods on temporary `String`s.
E.g. the following now compiles instead of failing with a compile error
about referencing a temporary value:
let s = format!("hello {name}!", "world").red();
BREAKING CHANGE: This may break some code that expects to call Stylize
methods on `String` values and then use the String value later. This
will now fail to compile because the String is consumed by set_style
instead of a slice being created and consumed.
This can be fixed by cloning the `String`. E.g.:
let s = String::from("hello world");
let line = Line::from(vec![s.red(), s.green()]); // fails to compile
let line = Line::from(vec![s.clone().red(), s.green()]); // works
A bug in the rendering caused the top line of the chart to be rendered
using the style of the chart, instead of the dataset style. This is
fixed by only setting the style for the width of the text, and not the
entire row.
Fixes: https://github.com/ratatui-org/ratatui/issues/379
For image (sixel, iTerm2, Kitty...) support that handles graphics in
terms of `Rect` so that the image area can be included in layouts.
For example: an image is loaded with a known pixel-size, and drawn, but
the image protocol has no mechanism of knowing the actual cell/character
area that been drawn on. It is then impossible to skip overdrawing the
area.
Returning the window size in pixel-width / pixel-height, together with
colums / rows, it can be possible to account the pixel size of each cell
/ character, and then known the `Rect` of a given image, and also resize
the image so that it fits exactly in a `Rect`.
Crossterm and termwiz also both return both sizes from one syscall,
while termion does two.
Add a `Size` struct for the cases where a `Rect`'s `x`/`y` is unused
(always zero).
`Size` is not "clipped" for `area < u16::max_value()` like `Rect`. This
is why there are `From` implementations between the two.
Calculating the label_offset is unnecessary, if we just render the
group label after rendering the bars. We can just reuse bar_y.
Signed-off-by: Ben Fekih, Hichem <hichem.f@live.de>
* docs(lib): extract feature documentation from Cargo.toml
* chore(deps): make `document-features` optional dependency
* docs(lib): document the serde feature from features section
> Sixel is a bitmap graphics format supported by terminals.
> "Sixel mode" is entered by sending the sequence ESC+Pq.
> The "String Terminator" sequence ESC+\ exits the mode.
The graphics are then rendered with the top left positioned at the
cursor position.
It is actually possible to render sixels in ratatui with just
`buf.get_mut(x, y).set_symbol("^[Pq ... ^[\")`. But any buffer covering
the "image area" will overwrite the graphics. This is most likely the same
buffer, even though it consists of empty characters `' '`, except for
the top-left character that starts the sequence.
Thus, either the buffer or cells must be specialized to avoid drawing
over the graphics. This patch specializes the `Cell` with a
`set_skip(bool)` method, based on James' patch:
https://github.com/TurtleTheSeaHobo/tui-rs/tree/sixel-support
I unsuccessfully tried specializing the `Buffer`, but as far as I can tell
buffers get merged all the way "up" and thus skipping must be set on the
Cells. Otherwise some kind of "skipping area" state would be required,
which I think is too complicated.
Having access to the buffer now it is possible to skipp all cells but the
first one which can then `set_symbol(sixel)`. It is up to the user to
deal with the graphics size and buffer area size. It is possible to get
the terminal's font size in pixels with a syscall.
An image widget for ratatui that uses this `skip` flag is available at
https://github.com/benjajaja/ratatu-image.
Co-authored-by: James <james@rectangle.pizza>
